306645632 has 32 divisors (see below), whose sum is σ = 611755200. Its totient is φ = 153107200.

The previous prime is 306645589. The next prime is 306645641. The reversal of 306645632 is 236546603.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 306645592 and 306645601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129257 + ... + 131607.

It is an arithmetic number, because the mean of its divisors is an integer number (19117350).

Almost surely, 2^306645632 is an apocalyptic number.

306645632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

306645632 is a deficient number, since it is larger than the sum of its proper divisors (305109568).

306645632 is a wasteful number, since it uses less digits than its factorization.

306645632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 306645632 is about 17511.3001230634. The cubic root of 306645632 is about 674.3400093076.

The spelling of 306645632 in words is "three hundred six million, six hundred forty-five thousand, six hundred thirty-two".